Network Virtualization promises to impact the networking industry much like server virtualization impacted IT. What this means for you is that the networks in your OpenStack cloud can be architected and operated in a way that is drastically better than the manual and opaque networks of the traditional enterprise era. Specifically, network virtualization provides fully-automated provisioning of network connectivity and policy and opens up new opportunities for network visualization, troubleshooting, and security. Now that network virtualization has been around a few years and exists in many production OpenStack deployments, we can talk concretely about which of the promised benefits of network virtualization are already being realized today, and which remain as promising ideas yet to be fully realized. This view into the deployments of network virtualization pioneers, along with a view of key industry trends will help your organization navigate the transition to network virtualization.